1. Problem: Calculate $\frac{24}{6}$.\n Formula: Division is splitting a number into equal parts.\n Work: $24 \div 6 = 4$.\n Explanation: 24 divided into 6 equal parts gives 4 in each part.\n\n2. Problem: Calculate $\frac{45}{9}$.\n Work: $45 \div 9 = 5$.\n\n3. Problem: Calculate $\frac{56}{7}$.\n Work: $56 \div 7 = 8$.\n\n4. Problem: Calculate $\frac{81}{9}$.\n Work: $81 \div 9 = 9$.\n\n5. Problem: Calculate $\frac{30}{5}$.\n Work: $30 \div 5 = 6$.\n\n6. Problem: Calculate $\frac{72}{8}$.\n Work: $72 \div 8 = 9$.\n\n7. Problem: Calculate $\frac{90}{10}$.\n Work: $90 \div 10 = 9$.\n\n8. Problem: Calculate $\frac{100}{20}$.\n Work: $100 \div 20 = 5$.\n\n9. Problem: Calculate $\frac{63}{7}$.\n Work: $63 \div 7 = 9$.\n\n10. Problem: Calculate $\frac{50}{5}$.\n Work: $50 \div 5 = 10$.